The antioxidant activity of thymol was analysed using the stable radical 2,2-diphenyl-1-picrylhydrazyl (DPPH) as previously reported (Byun et al., 2010). This method is based on colour decay when the odd electron of the nitrogen atom in the DPPH radical is reduced by receiving one hydrogen atom from antioxidant compounds (Scherer & Godoy, 2009). 500 lL of extracts were mixed with